CN110260698A - A kind of device and method reducing the thermal pollution of gas internal-combustion engine distributed busbar protection - Google Patents
A kind of device and method reducing the thermal pollution of gas internal-combustion engine distributed busbar protection Download PDFInfo
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- CN110260698A CN110260698A CN201910417089.4A CN201910417089A CN110260698A CN 110260698 A CN110260698 A CN 110260698A CN 201910417089 A CN201910417089 A CN 201910417089A CN 110260698 A CN110260698 A CN 110260698A
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 91
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 71
- 239000003546 flue gas Substances 0.000 claims abstract description 71
- 239000007789 gas Substances 0.000 claims abstract description 33
- 239000000779 smoke Substances 0.000 claims abstract description 21
- 238000001035 drying Methods 0.000 claims abstract description 14
- 238000012546 transfer Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 239000000498 cooling water Substances 0.000 claims abstract description 4
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000033228 biological regulation Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- 238000010248 power generation Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 239000008400 supply water Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims 1
- 239000003517 fume Substances 0.000 abstract description 5
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 239000002253 acid Substances 0.000 description 8
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 8
- 230000008901 benefit Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000002274 desiccant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0014—Recuperative heat exchangers the heat being recuperated from waste air or from vapors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
- Chimneys And Flues (AREA)
Abstract
The present invention relates to a kind of device and methods for reducing the thermal pollution of gas internal-combustion engine distributed busbar protection, flue gas is passed through the smoke inlet of high-temperature heat-exchanging by flue gas emission general pipeline, the outlet flue of high-temperature heat-exchanging and the smoke inlet of cryogenic heat exchanger connect, the outlet flue of cryogenic heat exchanger is connect with the low-temperature flue gas output channel of the low-temperature flue gas output for will obtain after heat exchange, and No. two temperature sensors are installed on No. two pipelines；The end of low-temperature flue gas output channel is equipped with air-introduced machine, and drying layer device is installed inside pipeline；The water inlet of cryogenic heat exchanger connects external cooling water water source, the water outlet of cryogenic heat exchanger and the water inlet of high-temperature heat-exchanging connect, and the No.1 water-supply-pipe is also connected with low temperature domestic hot-water's transfer pipeline, the water outlet of high-temperature heat-exchanging is connect with external heating hot water line, and high-temperature-hot-water is exported.The application utilizes fume afterheat to greatest extent, improves the primary energy utilization ratio of energy source station, and can be reduced pollutant NO in exhaustxDischarge.
Description
Technical field
The present invention relates to gas pollution control technical fields, in particular, it is distributed to be related to a kind of reduction gas internal-combustion engine
The device and method of energy source station thermal pollution.
Background technique
Currently, environmental pressure increasingly increases severely, compression is faced with the coal-fired energy resource system for main fuel centralized power generation and is produced
The status of energy has attracted the spring of great development using natural gas as the clean energy resource of representative.Distribution of Natural formula power station, which has, to be closed on
User, installed capacity is small, and hot and cold, electric various energy resources are supplied simultaneously, energy cascade utilization, electricity determining by heat, and start and stop are rapidly, conveniently
The features such as, it is a kind of energy-provision way that country pushes energetically.
Currently, country is not distinctly claimed the discharge of energy source station, but the fume afterheat of energy source station unit cooling supply, heat supply returns
It is 170 DEG C that receiving unit lithium bromide chiller, which designs exhaust gas temperature, causes waste heat energy source station exhaust gas temperature after the recovery still higher, this
User is closed on energy source station, closely this advantage is energized and mutually conflicts.
Energy source station is mainly arranged in office building, and the place in hospital, railway station et al. cluster, chimney is not high, a large amount of to continue
High-temperature flue gas arrange into air, will cause urban heat land effect, exacerbate the demand of summer cold energy, also reduce the life of the people
Running water is flat.In addition, due to high fume temperature, pollutant NOx(NO, NO2) during smoke exhaust pipe to NO2Conversion is discharged fume at yellowish
Color causes bad mental to imply nearby residents, causes negative effect to the green energy resource image of energy source station.
Currently, part energy source station takes to be added behind lithium bromide chiller smoke due to the protest of energy source station periphery user
Heat exchanger is filled, flue-gas temperature is dropped to 80 DEG C.Due to not accounting for gas internal-combustion engine distributed busbar protection load change, not with
Energy source station information mutual communication, is worked using design conditions, and in use process, as time goes by, efficiency of heat exchanger sharply declines,
Seriously corroded, service life are short.
In consideration of it, coming it is necessary to propose a kind of device and method for reducing the thermal pollution of gas internal-combustion engine distributed busbar protection
It solves the problem above-mentioned.
Summary of the invention
It is an object of the invention to overcome the above deficiencies in the existing technologies, and provide it is a kind of it is reasonable in design,
The device for reducing gas internal-combustion engine distributed busbar protection thermal pollution of system perfecting, and provide its method.
Technical solution used by the present invention solves the above problems is: a kind of reduction gas internal-combustion engine distributed busbar protection heat
The device of pollution, it is characterised in that: including at least one heat exchanger module, the heat exchanger module includes a high-temperature heat-exchanging
With a cryogenic heat exchanger, the high-temperature heat-exchanging and cryogenic heat exchanger all have smoke inlet, outlet flue, water inlet and water outlet
Mouthful；Flue gas is passed through the smoke inlet of high-temperature heat-exchanging, high temperature heat exchange by the flue gas emission general pipeline of gas internal-combustion engine distributed busbar protection
The outlet flue of device is connected by the smoke inlet of No.1 pipeline and cryogenic heat exchanger, and is installed No.1 temperature on the No.1 pipeline and passed
Sensor；Low-temperature flue gas output of the outlet flue of the cryogenic heat exchanger by No. two pipelines and one for will be obtained after heat exchange
The connection of low-temperature flue gas output channel, and No. two temperature sensors are installed on No. two pipelines；The low-temperature flue gas output channel
End is equipped with air-introduced machine, and inside pipeline and is located at air-introduced machine position forward installation drying layer device；The low-temperature heat exchange
The water inlet of device connects external cooling water water source, and installs No.1 electrically operated valve in the water inlet；The cryogenic heat exchanger
Water outlet is connected by the water inlet of No.1 water-supply-pipe and high-temperature heat-exchanging, and the No.1 water-supply-pipe is also connected with low temperature life
Delivery pipeline continues to change in high-temperature heat-exchanging so that low-temperature water heating a part that cryogenic heat exchanger exports is delivered to
Heat, another part are delivered in low temperature domestic hot-water's transfer pipeline, and No. two electricity are equipped on low temperature domestic hot-water's transfer pipeline
Movable valve and No. three temperature sensors；The water outlet of the high-temperature heat-exchanging is connect with external heating hot water line, by Gao Wenre
Water output, and No. four temperature sensors are installed in the water outlet.
Preferably, there are multiple heat exchanging water pipes inside the cryogenic heat exchanger, spraying is acidproof anti-in heat exchanging water pipe outer surface
Corrosion layer, for resisting the erosion of acid condensate water in flue gas, to improve the reliability of heat exchanger.
Preferably, No. two pipelines are in 90 ° of syphon shapes, the outlet flue connection of vertical section and cryogenic heat exchanger, water
Flat section is connect with low-temperature flue gas output channel, and opens up condensation-water drain in the bottom of horizontal segment；It is equipped in No. two pipelines
For collecting the drop catcher of the droplet in flue gas, the droplet trapped is discharged through condensation-water drain together with condensed water
After focused on.
Drying layer device in the present invention further traps the steam in flue gas, reaches the white effect that disappears to flue gas.Drying layer
Desiccant in device can freely change the outfit, and dry using natural drying, or using hot environment in energy source station.
The present invention also provides another technical solutions: a kind of to reduce gas internal-combustion engine distributed busbar protection using above-mentioned apparatus
The method of thermal pollution, setting: the quantity of heat exchanger module is depending on the operating conditions of energy source station, multiple heat exchanger wired in parallel
Setting；Choke valve is respectively provided at the smoke inlet of high-temperature heat-exchanging in each heat exchanger module；Whole device is controlled by one
Device is controlled, which communicates with the control system of energy source station.
Reduce the method and step of gas internal-combustion engine distributed busbar protection thermal pollution are as follows: firstly, first is changed when original state
Choke valve in hot device module maintains a normally open, and the choke valve in other heat exchanger modules is closed；Then it exchanges heat to first
Device module is passed through flue gas, and controller obtains the flue-gas temperature that No.1 temperature sensor and No. two temperature sensors monitor, if high
Flue-gas temperature is lower than 120 ° at warm heat exchanger exit, and cryogenic heat exchanger exit flue-gas temperature is lower than 35 DEG C, then heat exchanger module
It does not supply water, high-temperature heat-exchanging and cryogenic heat exchanger are in the temperature rise period, as flue-gas temperature is stepped up, work as cryogenic heat exchanger
When exit flue-gas temperature is higher than 35 DEG C, controller control No.1 electrically operated valve opens certain aperture and supplies water；With smoke
Temperature slowly rises, gradually by the aperture regulation of No.1 electrically operated valve to maximum；Controller is monitored according to No. four temperature sensors
The temperature of the high-temperature-hot-water arrived and according to actual needs adjusts No. two electrically operated valves on low temperature domestic hot-water transfer pipeline,
To carry out the stable regulation of hot water quality；As time goes by, when the flue-gas temperature of high-temperature heat-exchanging outlet flue is elevated above
At 120 DEG C, later on second heat exchanger module, second heat exchanger module is started to work, choke valve and each electronic
Flue-gas temperature of the aperture of valve according to the high-temperature heat-exchanging outlet flue in first heat exchanger module, cryogenic heat exchanger outlet flue
Flue-gas temperature and hot water temperature and determine, and so on, subsequent heat exchanger module is gradually opened, until meet in combustion gas
Combustion engine distributed power generation unit full load mode；Low-temperature flue gas by drying layer device be dried disappear it is white after, air-introduced machine act on
Lower introducing chimney is discharged.
In the present invention, controller is linked into the control system at gas internal-combustion engine power generation energy resource station, melts heat exchanger module
Enter into the energy supply unit of energy source station, with the variation of energy source station load, adjust automatically, it is ensured that the stabilization of heat exchanger hot water quality.
In the present invention, the variation of high and low temperature heat exchanger smoke temperature is perceived by controller, adjusts inflow, and increase and decrease is changed
The flow of hot device group water side is rapidly reached high-temperature heat-exchanging on acid dew-point temperature (120 °) in generating set startup stage,
It works on acid dew-point temperature always later, the flow by adjusting low temperature domestic hot-water water outlet maintains high-temperature-hot-water to go out water temperature
Degree is stablized, and the low temperature domestic hot-water of generation and high-temperature-hot-water are used to assisted gas distributed busbar protection and externally energize.
Compared with prior art, the present invention having the following advantages that and effect: 1, being promoted to greatest extent using fume afterheat
The primary energy utilization ratio of energy source station, and can be reduced pollutant NO in exhaustxDischarge；2, it can adapt to distributed energy
The load variations of unit are flexibly matched in the characteristics of standing, and so that the hot water quality generated is unlikely to fluctuation too big；3, cigarette is effectively controlled
Gas go out temperature and flue gas disappear it is white, make flue-gas temperature stablize in fixed range, generally 35 DEG C -50 DEG C, effectively disappear
In addition to the thermal pollution of urban environment；4, heat exchanging water pipe outer surface anticorrosion with painting loses layer, effectively resists acid ingredient in flue gas and causes
Acid etching, extend the service life of heat exchanger.
Detailed description of the invention
It, below will be to specific implementation in order to illustrate more clearly of the specific embodiment of the invention or scheme in the prior art
Mode or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, the accompanying drawings in the following description
It is some embodiments of the present invention, for those skilled in the art, without creative efforts, may be used also
To obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of single heat exchanger module in the embodiment of the present invention.
Fig. 2 is heat exchanger module regulation flow process schematic diagram in the embodiment of the present invention.
Description of symbols: high-temperature heat-exchanging 1, cryogenic heat exchanger 2, No.1 temperature sensor 3, low-temperature flue gas output channel
4,6, No. two air-introduced machine 5, drying layer device temperature sensors 7, No.1 electrically operated valve 8, No.1 water-supply-pipe 9, low temperature domestic hot-waters are defeated
Pipeline 10, two electrically operated valve 11, three temperature sensor 12, four temperature sensor 13, two pipeline 14, condensed water is sent to go out
Mouth 141.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is to this hair
Bright explanation and the invention is not limited to following embodiments.
Embodiment.
Referring to Fig. 1 to Fig. 2.
The present embodiment is a kind of device for reducing the thermal pollution of gas internal-combustion engine distributed busbar protection, and gas internal-combustion engine is distributed
Energy source station organizational form is that gas internal-combustion engine+double-effect lithium bromide freezes (heat supply) unit, and centrifuge refrigeration unit is spare and peak regulation,
Realize hot and cold, electric various energy resources output.After the present embodiment is mounted on BrLi chiller, for recycling lithium bromide refrigerator
The heat of group exhaust gas temperature, further promotes the primary energy utilization ratio of energy source station, reduces the thermal pollution of energy source station discharge.
In the present embodiment, the device for reducing the thermal pollution of gas internal-combustion engine distributed busbar protection includes heat exchanger module, heat exchange
The quantity of device module is determined according to energy source station generating set operating condition.Heat exchanger module includes that a high-temperature heat-exchanging 1 and one are low
Warm heat exchanger 2, high-temperature heat-exchanging 1 and cryogenic heat exchanger 2 all have smoke inlet, outlet flue, inlet and outlet.
In the present embodiment, flue gas is passed through high-temperature heat-exchanging 1 by the flue gas emission general pipeline of gas internal-combustion engine distributed busbar protection
Smoke inlet, the outlet flue of high-temperature heat-exchanging 1 connect by No.1 pipeline with the smoke inlet of cryogenic heat exchanger 2, and in the No.1
No.1 temperature sensor 3 is installed, for monitoring the flue-gas temperature of 1 outlet flue of high-temperature heat-exchanging on pipeline.
In the present embodiment, what the outlet flue of cryogenic heat exchanger 2 was used to obtain after exchanging heat by No. two pipelines 14 and one
The low-temperature flue gas output channel 4 of low-temperature flue gas output connects, and No. two temperature sensors 7 are installed on No. two pipelines 14, and No. two
Temperature sensor 7 is used to monitor the flue-gas temperature of 2 outlet flue of cryogenic heat exchanger.
In the present embodiment, No. two pipelines 14 are in 90 ° of syphon shapes, and vertical section is connect with the outlet flue of cryogenic heat exchanger 2,
Horizontal segment is connect with low-temperature flue gas output channel 4, and opens up condensation-water drain 141 in the bottom of horizontal segment.In No. two pipelines 14
Drop catcher for collecting the droplet in flue gas is inside installed, the droplet trapped is with condensed water together through condensed water
It is focused on after 141 discharge of outlet.
In the present embodiment, the end of low-temperature flue gas output channel 4 is equipped with air-introduced machine 5, and inside pipeline and be located at draw
5 position forward of blower installs drying layer device 6.Drying layer device 6 further traps the steam in flue gas, reaches white to disappearing for flue gas
Effect.Desiccant in drying layer device 6 can freely change the outfit, and dry using natural drying, or using hot environment in energy source station.Draw
Blower 5 can overcome flue circulating resistance, discharge so that flue gas is efficiently led to chimney.
In the present embodiment, the water inlet of cryogenic heat exchanger 2 connects external cooling water water source, and installs one in the water inlet
Number electrically operated valve 8；The water outlet of cryogenic heat exchanger 2 is connect by No.1 water-supply-pipe 9 with the water inlet of high-temperature heat-exchanging 1, and
The No.1 water-supply-pipe 9 is also connected with a low temperature domestic hot-water transfer pipeline 10, thus the low-temperature water heating one that cryogenic heat exchanger 2 is exported
Part, which is delivered in high-temperature heat-exchanging 1, to be continued to exchange heat, and another part is delivered in low temperature domestic hot-water transfer pipeline 10, should
No. two electrically operated valves 11 and No. three temperature sensors 12 are installed on low temperature domestic hot-water transfer pipeline 10；High-temperature heat-exchanging 1
Water outlet is connect with external heating hot water line, and high-temperature-hot-water is exported, and installs No. four temperature sensors in the water outlet
13。
In the present embodiment, there are multiple heat exchanging water pipes inside cryogenic heat exchanger 2, spraying is acidproof anti-in heat exchanging water pipe outer surface
Corrosion layer, for resisting the erosion of acid condensate water in flue gas, to improve the reliability of heat exchanger.
In the present embodiment, a method of reducing gas internal-combustion engine distributed busbar protection thermal pollution using above-mentioned apparatus,
Setting: the quantity of heat exchanger module is depending on the operating conditions of energy source station, multiple heat exchanger wired in parallel settings；Each heat exchange
Choke valve is respectively provided at the smoke inlet of high-temperature heat-exchanging in device module；Whole device is controlled by a controller, should
Controller is communicated with the control system of energy source station.
Reduce the method and step of gas internal-combustion engine distributed busbar protection thermal pollution are as follows: firstly, first is changed when original state
Choke valve in hot device module maintains a normally open, and the choke valve in other heat exchanger modules is closed；Then it exchanges heat to first
Device module is passed through flue gas, and controller obtains the flue-gas temperature that No.1 temperature sensor 3 and No. two temperature sensors 7 monitor, if
1 exit flue-gas temperature of high-temperature heat-exchanging is lower than 120 °, and 2 exit flue-gas temperature of cryogenic heat exchanger is lower than 35 DEG C, then heat exchanger
Module does not supply water, and high-temperature heat-exchanging 1 and cryogenic heat exchanger 2 are in the temperature rise period, as flue-gas temperature is stepped up, works as low temperature
When 2 exit flue-gas temperature of heat exchanger is higher than 35 DEG C, controller control No.1 electrically operated valve 8 opens certain aperture and supplies water；
As smoke temperature slowly rises, gradually by the aperture regulation of No.1 electrically operated valve 8 to maximum；Controller is passed according to No. four temperature
The temperature for the high-temperature-hot-water that sensor 13 monitors and according to actual needs adjusts two on low temperature domestic hot-water transfer pipeline 10
Number electrically operated valve 11, to carry out the stable regulation of hot water quality；As time goes by, when the flue gas of high-temperature heat-exchanging outlet flue
When temperature is elevated above 120 DEG C, later on second heat exchanger module, second heat exchanger module is started to work, solar term
Flue-gas temperature of the aperture of valve and each electrically operated valve according to the high-temperature heat-exchanging outlet flue in first heat exchanger module, low temperature
Flue-gas temperature and the hot water temperature of heat exchanger outlet flue and determine, and so on, gradually open subsequent heat exchanger module, directly
To meeting gas internal-combustion engine distributed power generation unit full load mode；Low-temperature flue gas by drying layer device 6 be dried disappear it is white after,
Chimney is introduced under the effect of air-introduced machine 5 to be discharged.
In the present invention, controller is linked into the control system at gas internal-combustion engine power generation energy resource station, melts heat exchanger module
Enter into the energy supply unit of energy source station, with the variation of energy source station load, adjust automatically, it is ensured that the stabilization of heat exchanger hot water quality.
In the present invention, the variation of high and low temperature heat exchanger smoke temperature is perceived by controller, adjusts inflow, and increase and decrease is changed
The flow of hot device group water side, is rapidly reached high-temperature heat-exchanging on 120 ° of acid dew-point temperature in generating set startup stage, it
It works on acid dew-point temperature always afterwards, the flow by adjusting low temperature domestic hot-water water outlet maintains high-temperature-hot-water leaving water temperature
Stablize, the low temperature domestic hot-water of generation and high-temperature-hot-water are used to assisted gas distributed busbar protection and externally energize.
In addition, it should be noted that, the specific embodiments described in this specification, the shape of parts and components are named
Title etc. can be different, and above content is only to structure of the invention example explanation described in this specification.It is all according to
According to equivalence changes or simple change that the structure, feature and principle that the invention patent is conceived is done, it is included in of the invention special
In the protection scope of benefit.Those skilled in the art can do described specific embodiment various
The similar mode of modify or supplement or adopt substitute, without departing from structure of the invention or surmount the claims institute
The range of definition, is within the scope of protection of the invention.
Claims (4)
1. a kind of device for reducing the thermal pollution of gas internal-combustion engine distributed busbar protection, it is characterised in that: including at least one heat exchange
Device module, the heat exchanger module include a high-temperature heat-exchanging (1) and a cryogenic heat exchanger (2), the high-temperature heat-exchanging
(1) and cryogenic heat exchanger (2) all has smoke inlet, outlet flue, inlet and outlet；Gas internal-combustion engine distributed busbar protection
Flue gas is passed through the smoke inlet of high-temperature heat-exchanging (1) by flue gas emission general pipeline, and the outlet flue of high-temperature heat-exchanging (1) passes through No.1 pipeline
It is connect with the smoke inlet of cryogenic heat exchanger (2), and No.1 temperature sensor (3) is installed on the No.1 pipeline；The low temperature changes
The low-temperature flue gas that the outlet flue of hot device (2) passes through No. two pipelines (14) and the low-temperature flue gas output for will obtain after heat exchange
Output channel (4) connection, and No. two temperature sensors (7) are installed on No. two pipelines (14)；The low-temperature flue gas output channel
(4) end is equipped with air-introduced machine (5), and inside pipeline and is located at air-introduced machine (5) position forward installation drying layer device
(6)；The water inlet of the cryogenic heat exchanger (2) connects external cooling water water source, and installs No.1 motor-driven valve in the water inlet
Door (8)；The water outlet of the cryogenic heat exchanger (2) is connect by No.1 water-supply-pipe (9) with the water inlet of high-temperature heat-exchanging (1),
And the No.1 water-supply-pipe (9) is also connected with a low temperature domestic hot-water transfer pipeline (10), thus by cryogenic heat exchanger (2) output
Low-temperature water heating a part, which is delivered in high-temperature heat-exchanging (1), to be continued to exchange heat, and it is defeated that another part is delivered to low temperature domestic hot-water
It send in pipeline (10), No. two electrically operated valves (11) and No. three temperature sensing is installed on low temperature domestic hot-water transfer pipeline (10)
Device (12)；The water outlet of the high-temperature heat-exchanging (1) is connect with external heating hot water line, high-temperature-hot-water is exported, and at this
Water outlet installs No. four temperature sensors (13).
2. the device according to claim 1 for reducing the thermal pollution of gas internal-combustion engine distributed busbar protection, it is characterised in that: institute
Stating has multiple heat exchanging water pipes inside cryogenic heat exchanger (2), spray acid-proof anticorrosive layer in heat exchanging water pipe outer surface.
3. the device according to claim 1 for reducing the thermal pollution of gas internal-combustion engine distributed busbar protection, it is characterised in that: institute
No. two pipelines (14) are stated in 90 ° of syphon shapes, vertical section is connect with the outlet flue of cryogenic heat exchanger (2), horizontal segment and low temperature
Flue gas exit pipe road (4) connection, and condensation-water drain (141) are opened up in the bottom of horizontal segment；The installation in No. two pipelines (14)
There is the drop catcher for collecting the droplet in flue gas.
4. a kind of method for reducing the thermal pollution of gas internal-combustion engine distributed busbar protection, using claim 1-3 any claim
The device, it is characterised in that:
Setting: the quantity of heat exchanger module is depending on the operating conditions of energy source station, multiple heat exchanger wired in parallel settings；Each
Choke valve is respectively provided at the smoke inlet of high-temperature heat-exchanging in heat exchanger module；Whole device is controlled by a controller
System, the controller are communicated with the control system of energy source station；
Method and step are as follows:
Firstly, the choke valve in first heat exchanger module maintains a normally open when original state, the section in other heat exchanger modules
Air valve is closed；
Then it is passed through flue gas to first heat exchanger module, controller obtains No.1 temperature sensor (3) and No. two temperature sensing
The flue-gas temperature that device (7) monitors, if high-temperature heat-exchanging (1) exit flue-gas temperature is lower than 120 °, cryogenic heat exchanger (2) outlet
Locate flue-gas temperature and be lower than 35 DEG C, then heat exchanger module does not supply water, and high-temperature heat-exchanging (1) and cryogenic heat exchanger (2) are in heating
Stage, as flue-gas temperature is stepped up, when cryogenic heat exchanger (2) exit flue-gas temperature is higher than 35 DEG C, controller control
No.1 electrically operated valve (8) opens certain aperture and supplies water；As smoke temperature slowly rises, gradually by No.1 electrically operated valve
(8) aperture regulation is to maximum；
The temperature for the high-temperature-hot-water that controller is monitored according to No. four temperature sensors (13) and according to actual needs is adjusted low
No. two electrically operated valves (11) on warm domestic hot-water's transfer pipeline (10), to carry out the stable regulation of hot water quality；
As time goes by, when the flue-gas temperature of high-temperature heat-exchanging outlet flue is elevated above 120 DEG C, later on second is changed
Hot device module, second heat exchanger module are started to work, and the aperture of choke valve and each electrically operated valve exchanges heat according to first
The flue-gas temperature of high-temperature heat-exchanging outlet flue in device module, the flue-gas temperature of cryogenic heat exchanger outlet flue and hot water temperature and
It determines, and so on, subsequent heat exchanger module is gradually opened, until meeting gas internal-combustion engine distributed power generation unit full load
Operating condition；Low-temperature flue gas is after drying layer device (6) is dried, and introducing chimney is discharged under air-introduced machine (5) effect.
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